99 lines
2.6 KiB
Crystal
99 lines
2.6 KiB
Crystal
require "http"
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require "json"
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require "uri"
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require "./kemal/*"
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require "./kemal/ext/*"
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require "./kemal/helpers/*"
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module Kemal
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# Overload of `self.run` with the default startup logging.
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def self.run(port : Int32?, args = ARGV, trap_signal : Bool = true)
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self.run(port, args, trap_signal) { }
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end
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# Overload of `self.run` without port.
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def self.run(args = ARGV, trap_signal : Bool = true)
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self.run(nil, args: args, trap_signal: trap_signal)
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end
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# Overload of `self.run` to allow just a block.
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def self.run(args = ARGV, &block)
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self.run(nil, args: args, trap_signal: true, &block)
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end
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# The command to run a `Kemal` application.
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#
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# If *port* is not given Kemal will use `Kemal::Config#port`
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#
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# To use custom command line arguments, set args to nil
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#
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def self.run(port : Int32? = nil, args = ARGV, trap_signal : Bool = true, &block)
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Kemal::CLI.new args
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config = Kemal.config
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config.setup
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config.port = port if port
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# Test environment doesn't need to have signal trap and logging.
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if config.env != "test"
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setup_404
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setup_trap_signal if trap_signal
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end
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server = config.server ||= HTTP::Server.new(config.handlers)
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config.running = true
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yield config
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# Abort if block called `Kemal.stop`
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return unless config.running
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unless server.each_address { |_| break true }
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{% if flag?(:without_openssl) %}
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server.bind_tcp(config.host_binding, config.port)
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{% else %}
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if ssl = config.ssl
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server.bind_tls(config.host_binding, config.port, ssl)
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else
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server.bind_tcp(config.host_binding, config.port)
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end
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{% end %}
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end
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display_startup_message(config, server)
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server.listen unless config.env == "test"
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end
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def self.display_startup_message(config, server)
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addresses = server.addresses.join ", " { |address| "#{config.scheme}://#{address}" }
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log "[#{config.env}] #{config.app_name} is ready to lead at #{addresses}"
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end
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def self.stop
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raise "#{Kemal.config.app_name} is already stopped." if !config.running
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if server = config.server
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server.close unless server.closed?
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config.running = false
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else
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raise "Kemal.config.server is not set. Please use Kemal.run to set the server."
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end
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end
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private def self.setup_404
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unless Kemal.config.error_handlers.has_key?(404)
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error 404 do
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render_404
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end
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end
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end
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private def self.setup_trap_signal
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Signal::INT.trap do
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log "#{Kemal.config.app_name} is going to take a rest!" if Kemal.config.shutdown_message
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Kemal.stop
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exit
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end
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end
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end
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